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adoni [48]
3 years ago
15

Someone please help! Thank you!!! (worth 25 pts)

Mathematics
1 answer:
Stells [14]3 years ago
4 0
Divide each distance by its time, you will get:

Elena: 20.5/2.25 = 9.1111111 mph
Julio:  12.25/1.5=8.16666666 mph
Kevin: 20 2/3/1 2/3 = 12.4      mph
Lorena: 33.25/2 1/3 = 14.25    mph


Slowest to fastest:
Julio<Elena<Kevin<Lorena


The fastest rider is Lorena
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(URGENT) need this answer today​
Vlad [161]

Answer: 19.5

Step-by-step explanation:

Use Pythagorean theorem to find the diagonal as it is a right triangle.

6 0
3 years ago
Please help me solve this
Oduvanchick [21]
\dfrac{x}{ - 3} < - 4 \\\\ x > 12

P. S. The inequality sign changed or flipped when there's a negative figure involved.

Hope this helps. - M
3 0
3 years ago
A cube an edge length is 18in. What is it's volume?
Maksim231197 [3]
The answer would be 18*18*18=5832
Good luck ^-^
5 0
3 years ago
The function f(x)=(x-5)^2 +2 is not one-to-one. Identify a restricted domain that makes the function one-to-one, and find the in
Anon25 [30]

We have been given a quadratic function f(x)=(x-5)^{2} +2 and we need to restrict the domain such that it becomes a one to one function.

We know that vertex of this quadratic function occurs at (5,2).

Further, we know that range of this function is [2,\infty).

If we restrict the domain of this function to either (-\infty,5] or [5,\infty), it will become one to one function.

Let us know find its inverse.

y=(x-5)^{2}+2

Upon interchanging x and y, we get:

x=(y-5)^{2}+2

Let us now solve this function for y.

(y-5)^{2}=x-2\\&#10;y-5=\pm \sqrt{x-2}\\&#10;y=5\pm \sqrt{x-2}\\

Hence, the inverse function would be f^{-1}(x)=5+\sqrt{x-2} if we restrict the domain of original function to [5,\infty) and the inverse function would be f^{-1}(x)=5-\sqrt{x-2} if we restrict the domain to (-\infty,5].

8 0
3 years ago
What is the surface area of a cube whose edges are 11 inches long?
Dennis_Churaev [7]
Surface area is the total area of the surface. A cube has 6 surface, and each surface is the same. Each surface is a 11 by 11 square. Therefore there will be 6 11in. x 11in. surfaces. The math would be 11x11x6 =726.
8 0
3 years ago
Read 2 more answers
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